. >> dubois: former south african president nelson mandela has emen admitted to a pretoria hospital for tests. an official statement says there is "no cause for alarm." wndela celebrated his 94th birthday this past july with a cbs news crew given rare access to the party. north korea signaled today it may postpone a controversial test launch of its new long- range rocket previously scheduled to take place as early as this coming monday. it offered no explanation for the apparent delay. here at home, we are just over three weeks away from falling over the so-called fiscal cliff, that combination of tax increases and deep federal spending cuts. nancy cordes reports, the back- and-forecast showed no sign of letting up today 20 white house and republicans in congress. dr reporter: in his saturday weekly address, president obama nignaled he is open to making cuts on programs like medicare agd medicaid if republicans atree to raise tax rates for the rich. fini'm willing to find ways to cing down the cost of health care without hurting seniors and dther americans who depend on it. and i'm will